Take screenshot with dialog

Question

I need to take screenshot programmatically of activity view. I have found a lot of answers how to do it, but there is not answer how to do it with opened dialog

Answer 1

This is work for me (but without dialog):

public class MainActivity extends AppCompatActivity {

private View main;
private ImageView imageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Here we Checking CALL_PHONE permission

    setContentView(R.layout.activity_main);
    main = findViewById(R.id.main);
    imageView = (ImageView) findViewById(R.id.imageView);
    Button btn = (Button) findViewById(R.id.btn);
    btn.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View view) {

            Bitmap b = Screenshot.takescreenshotOfRoot(imageView);
            imageView.setImageBitmap(b);
            main.setBackgroundColor(Color.parseColor("#999999"));
        }
    });

}

}

Screenshot class:

public class Screenshot {

public static Bitmap takescreenshot (View v) {
    v.setDrawingCacheEnabled(true);
    v.buildDrawingCache(true);
    Bitmap b = Bitmap.createBitmap(v.getDrawingCache());
    v.setDrawingCacheEnabled(false);
    return b;
}

public static Bitmap takescreenshotOfRoot(View v) {
    return takescreenshot(v.getRootView());

}

}

XML: